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<a href="blob__stream__mq__snd_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/* Flow-IPC: Core</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * Copyright 2023 Akamai Technologies, Inc.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> * Licensed under the Apache License, Version 2.0 (the</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * &quot;License&quot;); you may not use this file except in</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * compliance with the License.  You may obtain a copy</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * of the License at</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> *   https://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> *</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> * Unless required by applicable law or agreed to in</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * writing, software distributed under the License is</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * See the License for the specific language governing</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * permissions and limitations under the License. */</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"></span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">/// @file</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"></span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="preprocessor">#include &quot;<a class="code" href="detail_2blob__stream__mq__snd__impl_8hpp.html">ipc/transport/detail/blob_stream_mq_snd_impl.hpp</a>&quot;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="preprocessor">#include &lt;boost/move/make_unique.hpp&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="preprocessor">#include &lt;experimental/propagate_const&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceipc_1_1transport.html">ipc::transport</a></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span>{</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment">// Types.</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="comment"></span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment">/**</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="comment"> * Implements Blob_sender concept by using an adopted Persistent_mq_handle MQ handle to an MQ (message queue)</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment"> * of that type, such as a POSIX or bipc MQ.  This allows for high-performance, potentially zero-copy (except</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment"> * for copying into the transport MQ) of discrete messages, each containing a binary blob.</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment"> * This is a low-level (core) transport mechanism; higher-level (structured)</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="comment"> * transport mechanisms may use Blob_stream_mq_sender (and Blob_stream_mq_receiver) to enable their work.</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="comment"> *</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="comment"> * ### Informal comparison to other core transport mechanisms ###</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="comment"> * It is intended for transmission of relatively short messages -- rough guidance</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="comment"> * being for max length being in the 10s-of-KiB range.  With a modern Linux kernel on server hardware from about 2014</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="comment"> * to 2020, our performance tests show that its raw speed for messages of aforementioned size is comparable to</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="comment"> * non-zero-copy mechanism based on Unix domain sockets.  Technically we found `Blob_stream_mq_*&lt;Posix_mq_handle&gt;`</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment"> * to be somewhat faster; and `Blob_stream_*&lt;Bipc_mq_handle&gt;` (internally, SHM-based) somewhat slower.</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"> * However, for best perf, it is recommended to send handles to SHM areas containing arbitrarily long structured</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment"> * messages (such as ones [de]serialized using zero-copy builders: capnp and the like).</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment"> * This further reduces the importance of relative perf compared to</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment"> * other low-level transports (which, as noted, is pretty close regardless -- though this is bound to stop being true</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment"> * for much longer messages, if the send-SHM-handles technique were to *not* be used).</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment"> *</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment"> * @see Native_socket_stream which also implements Blob_sender (and Blob_receiver) in its degraded mode (where</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment"> *      one does not transmit native handles, only blobs).</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment"> *</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment"> * ### Relationship between `Blob_stream_mq_*`, the underlying MQ resource, and its Shared_name ###</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment"> * If one is familiar with MQs (doesn&#39;t matter whether POSIX or bipc -- their persistence semantics are identical),</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment"> * it is easy to become confused as to what `Blob_stream_mq_*` is modeling.  To explain it then:</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment"> *</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment"> * - Think of the MQ itself as a file -- albeit in RAM -- a bulky thing that can store a certain number of bytes.</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment"> * - Think of its Shared_name as a directory entry, essentially a file name in a certain directory in the file system.</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment"> * - Think of a Persistent_mq_handle (the actual type being a template param; namely as of this writing</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment"> *   Posix_mq_handle or Bipc_mq_handle) as a file handle.  They can be opened for reading, writing, or both.</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="comment"> *   More than 1 can be opened simultaneously.</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="comment"> *   - Writing through this handle *pushes* a message but really writes those bytes somewhere in the &quot;file&quot; (MQ)</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment"> *     in RAM.  Any handle can be used for this; one can write through handle X and then right after that read through</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="comment"> *     same handle X if desired.</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment"> *   - Reading, similarly, *pops* a message by reading bytes from the &quot;file.&quot;</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment"> *   - One can open handle X, close handle X, wait 5 minutes, and from even another process open handle Y</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="comment"> *     to the same name: the &quot;stuff&quot; (un-popped messages) will still be there.</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment"> *</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> * So that&#39;s MQs.  However, `Blob_stream_mq_*` -- implementing Blob_sender and Blob_receiver as they do -- emphatically</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> * does *not* model that kind of free-for-all access (read/write, through 3+ handles if desired).  Instead it models</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> * a *one-direction pipe*.  So: there is up to 1 (exactly 1, if you want it to be useful) Blob_stream_mq_sender</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment"> * per Shared_name.  It *only* writes (pushes).  There is up to 1 (exactly 1, if...) Blob_stream_mq_receiver</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment"> * per Shared_name.  It *only* reads (pops).  Therefore trying to create a 2nd `_sender`, when 1 already exists --</span></div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment"> * in *any* process -- is an error and does not work (an error is emitted from ctor; see its doc header).</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment"> * Same thing for `_receiver`.</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment"> *</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment"> * Moreover it is not a persistent pipe, either, even though the underlying MQ is quite capable of persistence</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment"> * (until reboot at any rate).  Per Blob_sender/Blob_receiver concept, when a destructor for *either*</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment"> * the 1 Blob_stream_mq_sender *or* the 1 Blob_stream_mq_receiver is called (whichever happens first):</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment"> *   - The Shared_name &quot;directory entry&quot; is deleted.  The MQ becomes anonymous: creating an MQ with the same name</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment"> *     will begin working -- and will create a totally new MQ.</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="comment"> *     - (Caveat/corner case: In practice this is only useful after *both* destructors have run.</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment"> *       Indeed MQ creation is possible after 1, but not the other, has executed; but then that &quot;the other&quot; will</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment"> *       sadly delete the new, same-named MQ.  So don&#39;t.)</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment"> *   - The MQ handle is closed.</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment"> *</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment"> * Then once the other peer object (whether receiver or sender) dtor also executes:</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"> *   - (There is no &quot;directory entry&quot; to delete any longer.)</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment"> *   - The MQ handle is closed.</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"> *</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"> * That last step brings the ref-count of things referring to the underlying MQ &quot;file&quot; (in RAM) to 0.  Hence</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment"> * the MQ &quot;file&quot; (in RAM) is deleted (RAM is freed, becoming usable by other stuff, like maybe the general heap).</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment"> *</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment"> * That is how the Blob_sender/Blob_receiver one-direction pipe concept is satisfied, even though a general MQ</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment"> * has greater capabilities.  That&#39;s not to say one should not use those; just not what this class is for;</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment"> * but one can use Posix_mq_handle/Bipc_mq_handle directly if necessary.</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"> *</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> * ### Cleanup ###</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"> * As just described, the two `Blob_stream_mq_*` classes are fairly aggressive about deleting the underlying MQ</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment"> * RAM resource.  It is, generally, important not to leave those lying around post-use, as they can take non-trivial</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment"> * RAM.</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"> *</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"> * However, MQs (being kernel-persistent at least) require an even greater amount of care in cleanup than that.</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment"> * Assuming buglessness of the classes themselves and a graceful shutdown of the program -- including on clean</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"> * exception handling, wherein the stack fully unwinds, and the destructors all run -- there is no problem.</span></div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment"> *</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment"> * However, if something (a hard crash perhaps) prevents a Blob_stream_mq_sender or Blob_stream_mq_receiver dtor</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment"> * from running, the MQ &quot;file&quot; (in RAM) shall leak.  It is your responsibility to implement a contingency for such</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment"> * leaks.  (Note that, beyond RAM, there are limits on the number of MQs -- and certain other internally used</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"> * kernel-persistent objects -- that exist system-wide.  If reached -- which is not hard -- then things will</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"> * screech to a halt, until something cleans up the leaks.)  We provide 2 techniques to aid this.</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment"> *</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"> *   - You can maintain a *persistent* registry of created MQ streams.  In that case you&#39;ll have a list of</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment"> *     `mq.absolute_name()`s (where `mq` is passed to our and the receiver peer&#39;s ctors).  After any potential</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> *     abort, in another instance (process) of the application, invoke Blob_stream_mq_base::remove_persistent()</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> *     on each such name.</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> *   - To avoid the persistent registry, a much easier, though less surgical/definitive, technique is to maintain</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> *     a prefix-based naming convention for `mq.absolute_name()`.  Then: After any potential abort, in another</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment"> *     instance (process) of the application, invoke remove_each_persistent_with_name_prefix&lt;Blob_stream_mq_base&gt;(),</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment"> *     passing in the applicable Shared_name prefix.  Having done so, the leaks (if any) should be cleaned.</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"> *</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment"> * ipc::session uses the 2nd technique.</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment"> *</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> * ### Reusing the same absolute_name() for a new MQ and one-direction pipe ###</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> * Formally, as pointed out in various docs, this is possible no later than the return of the later of the</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment"> * Blob_stream_mq_sender and Blob_stream_mq_receiver dtors.  Informally, we recommend against this if it can be avoided.</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"> * Sure, it&#39;s fine if you can guarantee no process -- even *another* process -- would try to do so until</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"> * in fact both of those dtors has run.  This may not be trivial; it might even require more IPC to coordinate!</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment"> * It is better to segregate these things via unique names, using a namespace from something like a PID which</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> * will not, within reason, repeat before reboot.  ipc::session uses this technique for various kernel-persistent</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment"> * resources including (not limited to) these MQs.</span></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"> *</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment"> * ### Thread safety ###</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment"> * We add no more thread safety guarantees than those mandated by Blob_sender concept.</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment"> *</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"> * @internal</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"> * ### Implementation design/rationale ###</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> * Internally this class template uses uses the pImpl idiom (see https://en.cppreference.com/w/cpp/language/pimpl</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment"> * for an excellent overview), except it is what I (ygoldfel) term &quot;pImpl-lite&quot;.  That is: it is pImpl that achieves</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> * performant and easily-coded move-semantics -- in the face of fairly complex async impl details --</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> * but does *not* achieve a stable ABI (the thing where one can change impl method bodies without recompiling</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment"> * the code/changing the binary signature of the class).  Long story short:</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment"> *   - See Native_socket_stream&#39;s &quot;Implementation design/rationale&quot; for why they chose pImpl.  The same applies here.</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment"> *   - However, we are a template, and this template-ness is not reasonably possible to elide (via type erasure or</span></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"> *     something) into a non-template impl class.  Therefore, simply, there is the non-movable</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment"> *     Blob_stream_mq_sender_impl class *template* which is in detail/ and not to be `#include`d by the user;</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment"> *     but *we* simply `#include` it above this doc header; and then write Blob_stream_mq_sender in terms of it.</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment"> *   - So we get the quick/easy move-semantics that pImpl gives; but we don&#39;t get the binary separation between</span></div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment"> *     interface and implementation.</span></div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment"> *     - Also, stylistically, I (ygoldfel) did not bother to make Blob_stream_mq_sender_impl an inner class.</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment"> *       It&#39;s in detail/ which means user must not instantiate it; this is a common pattern.</span></div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment"> *       I did not bother vaguely because it&#39;s not full pImpl anyway, and the circular reference nonsense would</span></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment"> *       be annoying.</span></div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment"> *</span></div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"> * @see Blob_stream_mq_sender_impl doc header.</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment"> *</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment"> * @endinternal</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment"> *</span></div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment"> * @tparam Persistent_mq_handle</span></div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment"> *         See Persistent_mq_handle concept doc header.</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment"> *</span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment"> * @see Blob_sender: implemented concept.</span></div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"> */</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">  164</a></span><span class="keyword">class </span><a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a> : <span class="keyword">public</span> <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__base.html">Blob_stream_mq_base</a>&lt;Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>{</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>  <span class="comment">// Types.</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment"></span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment">  /// Short-hand for our base with `static` goodies at least.</span></div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a57ed4042d5b70b0c1b73bcb75a9e5f85">  170</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__base.html">Base</a> = <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__base.html">Blob_stream_mq_base&lt;Persistent_mq_handle&gt;</a>;</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span><span class="comment"></span> </div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="comment">  /// Short-hand for template arg for underlying MQ handle type.</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa2cb5c8fc525ae45edf8ab1b257f328d">  173</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa2cb5c8fc525ae45edf8ab1b257f328d">Mq</a> = <span class="keyword">typename</span> <a class="code hl_typedef" href="classipc_1_1transport_1_1Blob__stream__mq__sender__impl.html#a437460b4d4c98c43ecba190d3859eab4">Blob_stream_mq_sender_impl&lt;Persistent_mq_handle&gt;::Mq</a>;</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment"></span> </div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment">  /// Useful for generic programming, the `sync_io`-pattern counterpart to `*this` type.</span></div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#acf4adb7cf4114d25386a886ed9e73aa8">  176</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_class" href="classipc_1_1transport_1_1sync__io_1_1Blob__stream__mq__sender.html">Sync_io_obj</a> = <a class="code hl_class" href="classipc_1_1transport_1_1sync__io_1_1Blob__stream__mq__sender.html">sync_io::Blob_stream_mq_sender&lt;Mq&gt;</a>;<span class="comment"></span></div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment">  /// You may disregard.</span></div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a96cccfae5eb2ceb480422869e8cca0d5">  178</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_class" href="classipc_1_1transport_1_1Null__peer.html">Async_io_obj</a> = <a class="code hl_class" href="classipc_1_1transport_1_1Null__peer.html">Null_peer</a>;</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span> </div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>  <span class="comment">// Constants.</span></div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment"></span> </div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment">  /// Implements concept API.  Equals `Mq::S_RESOURCE_TYPE_ID`.</span></div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a57164996725324b544aedf6707d158d1">  183</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a> <a class="code hl_variable" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a57164996725324b544aedf6707d158d1">S_RESOURCE_TYPE_ID</a>;</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span> </div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>  <span class="comment">// Constructors/destructor.</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment"></span> </div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment">   * Constructs the sender by taking over an already-opened MQ handle.</span></div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment">   * Note that this op does not implement any concept; Blob_sender concept does not define how a Blob_sender</span></div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment">   * is created in this explicit fashion.</span></div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment">   *</span></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment">   * No traffic must have occurred on `mq_moved` up to this call.  Otherwise behavior is undefined.</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment">   *</span></div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment">   * If this fails (sets `*err_code` to truthy if not null; throws if null), all transmission calls on `*this`</span></div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment">   * will fail with the post-value in `*err_code` emitted.  In particular, error::Code::S_BLOB_STREAM_MQ_SENDER_EXISTS</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment">   * is that code, if the reason for failure was that another Blob_stream_mq_sender to</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment">   * `mq_moved.absolute_name()` has already been created in this or other process.  See class doc header for</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment">   * discussion of the relationship between Blob_stream_mq_sender, Blob_stream_mq_receiver, the underlying MQ</span></div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment">   * at a given Shared_name, and that Shared_name as registered in the OS.</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment">   * In short: there is to be up to 1 Blob_stream_mq_sender and up to 1 Blob_stream_mq_receiver for a given</span></div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment">   * named persistent MQ.  In this way, it is one single-direction pipe with 2 peers, like half of</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment">   * Native_socket_stream pipe: it is not a MQ with</span></div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment">   * back-and-forth traffic nor multiple senders or multiple receivers.  The underlying MQ supports such things;</span></div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment">   * but that is not what the Blob_sender/Blob_receiver concepts model.</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment">   *</span></div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment">   * Along those same lines note that the dtor (at the latest -- which happens if no fatal error occurs throughout)</span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment">   * will not only close the MQ handle acquired from `mq_moved` but will execute `Mq::remove_persistent(name)`,</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment">   * where `name == mq_moved.absolute_name()` pre-this-ctor.</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment">   *</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment">   * ### Leaks of persistent resources ###</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment">   * If something prevents the destructor from running -- a hard crash, say -- the underlying MQ and/or the name</span></div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment">   * may be leaked.  External measures taken by ipc::session machinery are likely necessary to subsequently clean up</span></div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment">   * the resource which, depending on the parameters passed to the #Mq ctor when originally creating the MQ,</span></div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment">   * may use non-trivial RAM.</span></div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment">   *</span></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment">   * ### Performance ###</span></div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment">   * The taking over of `mq_moved` should be thought of as light-weight.</span></div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment">   *</span></div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment">   * @param logger_ptr</span></div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment">   *        Logger to use for subsequently logging.</span></div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span><span class="comment">   * @param mq_moved</span></div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span><span class="comment">   *        An MQ handle to an MQ with no traffic on it so far.  Unless an error is emitted, `mq_moved` becomes</span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span><span class="comment">   *        nullified upon return from this ctor.  `*this` owns the MQ handle from this point on and is reponsible</span></div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="comment">   *        for closing it.</span></div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment">   * @param nickname_str</span></div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment">   *        Human-readable nickname of the new object, as of this writing for use in `operator&lt;&lt;(ostream)` and</span></div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment">   *        logging only.</span></div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span><span class="comment">   * @param err_code</span></div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span><span class="comment">   *        See `flow::Error_code` docs for error reporting semantics.  #Error_code generated:</span></div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="comment">   *        error::Code::S_BLOB_STREAM_MQ_SENDER_EXISTS (another Blob_stream_mq_sender exists),</span></div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="comment">   *        system codes (other errors, all to do with the creation of a separate internally used tiny SHM pool</span></div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="comment">   *        used to prevent duplicate Blob_stream_mq_sender in the system).</span></div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="comment">   */</span></div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">Blob_stream_mq_sender</a>(flow::log::Logger* logger_ptr, <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">util::String_view</a> nickname_str,</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>                                 <a class="code hl_typedef" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa2cb5c8fc525ae45edf8ab1b257f328d">Mq</a>&amp;&amp; mq_moved, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code = 0);</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="comment"></span> </div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span><span class="comment">   * Implements Blob_sender API, per its concept contract.</span></div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span><span class="comment">   * All the notes for that concept&#39;s core-adopting ctor apply.</span></div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment">   *</span></div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment">   * @param sync_io_core_in_peer_state_moved</span></div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment">   *</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment">   * @see Blob_sender::Blob_sender(): implemented concept.</span></div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment">   */</span></div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">Blob_stream_mq_sender</a>(<a class="code hl_class" href="classipc_1_1transport_1_1sync__io_1_1Blob__stream__mq__sender.html">Sync_io_obj</a>&amp;&amp; sync_io_core_in_peer_state_moved);</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment"></span> </div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment">   * Implements Blob_sender API, per its concept contract.</span></div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">   * All the notes for that concept&#39;s default ctor apply.</span></div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment">   *</span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span><span class="comment">   * @see Blob_sender::Blob_sender(): implemented concept.</span></div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="comment">   */</span></div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">  254</a></span>  <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">Blob_stream_mq_sender</a>();</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment"></span> </div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment">   * Move-constructs from `src`; `src` becomes as-if default-cted (therefore in NULL state).</span></div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment">   * Implements Blob_sender API, per its concept contract.</span></div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment">   *</span></div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment">   * @param src</span></div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment">   *</span></div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="comment">   * @see Blob_sender::Blob_sender(): implemented concept.</span></div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="comment">   */</span></div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ae8782f3758e07a82853115c2d7305dc7">  265</a></span>  <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ae8782f3758e07a82853115c2d7305dc7">Blob_stream_mq_sender</a>(<a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a>&amp;&amp; src);</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="comment"></span> </div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment">  /// Copy construction is disallowed.</span></div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ad3cef9a7f7218295790ad2fcd5520224">  268</a></span><span class="comment"></span>  <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ad3cef9a7f7218295790ad2fcd5520224">Blob_stream_mq_sender</a>(<span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a>&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment"></span> </div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span><span class="comment">   * Implements Blob_sender API.  All the notes for the concept&#39;s destructor apply but as a reminder:</span></div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span><span class="comment">   *</span></div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span><span class="comment">   * Destroys this peer endpoint which will end the one-direction pipe and cancel any pending</span></div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span><span class="comment">   * completion handlers by invoking it ASAP with error::Code::S_OBJECT_SHUTDOWN_ABORTED_COMPLETION_HANDLER.</span></div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span><span class="comment">   * As of this writing these are the completion handlers that would therefore be called:</span></div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span><span class="comment">   *   - The handler passed to async_end_sending() if not yet invoked.</span></div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="comment">   *     Since it is not valid to call async_end_sending() more than once, there is at most 1 of these.</span></div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span><span class="comment">   *</span></div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="comment">   * ### Fate of underlying MQ and its `.absolute_name()` ###</span></div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="comment">   * No later than the return of this destructor:</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="comment">   *   - The MQ name, namely `mq_moved.absolute_name()` from ctor, shall have been deleted.</span></div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span><span class="comment">   *     Therefore one will be able to util::Create a new #Mq; whereas before the dtor is called and returns</span></div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span><span class="comment">   *     it may (most likely will) not be possible to do so.  This shall decrease the ref-count for the underlying</span></div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span><span class="comment">   *     MQ resource to at most 2.  (Its ref-count is ever at most 3: 1 from the OS-registered Shared_name in the</span></div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment">   *     file system; 1 from `*this` Blob_stream_mq_sender; and 1 from the peer Blob_stream_mq_receiver).</span></div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="comment">   *   - The ref-count for the underlying MQ resource shall further decrease from 2 to 1 (if the counterpart</span></div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment">   *     Blob_stream_mq_sender still lives) or from 1 to 0 (if not).  In the latter case the MQ itself shall be</span></div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment">   *     deleted, its bulk resources (in RAM) freed.</span></div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment">   *</span></div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment">   * While indeed util::Create of a new #Mq is possible after this dtor returns:</span></div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment">   *   - In practice it should only be done after *both* (sender and receiver) dtors have returned.</span></div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment">   *     Otherwise the later of the 2 will delete the new underlying MQ too: probably not what you want.</span></div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment">   *   - Even having accomplished that, it is still best not to reuse names if possible, at least not anytime soon.</span></div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="comment">   *     See class doc header for brief discussion.</span></div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span><span class="comment">   *</span></div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span><span class="comment">   * @see Blob_sender::~Blob_sender(): implemented concept.</span></div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment">   */</span></div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a0986c0ee166edfdbb96b4a581678d01e">  298</a></span>  <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a0986c0ee166edfdbb96b4a581678d01e">~Blob_stream_mq_sender</a>();</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span> </div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span>  <span class="comment">// Methods.</span></div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment"></span> </div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="comment">   * Move-assigns from `src`; `*this` acts as if destructed; `src` becomes as-if default-cted (therefore in NULL state).</span></div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment">   * No-op if `&amp;src == this`.</span></div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment">   * Implements Blob_sender API, per its concept contract.</span></div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="comment">   *</span></div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span><span class="comment">   * @see ~Blob_stream_mq_sender().</span></div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span><span class="comment">   *</span></div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span><span class="comment">   * @param src</span></div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">   *</span></div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">   * @see Blob_sender move assignment: implemented concept.</span></div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment">   */</span></div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a632ad9aa40e557a9d5edef4b122ddaf9">  315</a></span>  <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a632ad9aa40e557a9d5edef4b122ddaf9">operator=</a>(<a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a>&amp;&amp; src);</div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment"></span> </div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment">  /// Copy assignment is disallowed.</span></div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a76419b55b2411de21b704b4385b1eac7">  318</a></span><span class="comment"></span>  <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a76419b55b2411de21b704b4385b1eac7">operator=</a>(<span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a>&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment"></span> </div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span><span class="comment">   * Implements Blob_sender API per contract.  Note this value equals &quot;remote&quot; peer&#39;s value for the same call</span></div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span><span class="comment">   * at any given time which is *not* a concept requirement and may be untrue of other concept co-implementing classes.</span></div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment">   *</span></div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment">   *</span></div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment">   * @see Blob_sender::send_blob_max_size(): implemented concept.</span></div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment">   */</span></div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a4e5d7add242439e01c56cab3697aebb6">send_blob_max_size</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment"></span> </div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment">   * Implements Blob_sender API per contract.  Reminder: It&#39;s not thread-safe</span></div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment">   * to call this concurrently with other transmission methods or destructor on the same `*this`.</span></div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment">   *</span></div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment">   * Reminder: `blob.size() == 0` results in undefined behavior (assertion may trip).</span></div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="comment">   *</span></div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="comment">   * @param blob</span></div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span><span class="comment">   *        See above.  Reminder: The memory area described by this arg need only be valid until this</span></div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span><span class="comment">   *        method returns.  Perf reminder: That area will not be copied except for rare circumstances.</span></div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span><span class="comment">   * @param err_code</span></div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="comment">   *        See above.  Reminder: In rare circumstances, an error emitted here may represent something</span></div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="comment">   *        detected during handling of a *preceding* send_blob() call but after it returned.</span></div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment">   *        #Error_code generated:</span></div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment">   *        error::Code::S_INVALID_ARGUMENT (`blob.size()` exceeds max_msg_size()),</span></div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment">   *        error::Code::S_SENDS_FINISHED_CANNOT_SEND (`*end_sending()` was called earlier),</span></div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment">   *        system codes (but never would-block), indicating the underlying transport is hosed for that</span></div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment">   *        specific reason, as detected during outgoing-direction processing.</span></div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">   *</span></div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment">   * @see Native_handle_sender::send_native_handle(): implemented concept.</span></div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment">   */</span></div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a1d23a47d08ac7c31aa546ea02bb24c55">send_blob</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae0be7edba7e30ffa3f8b742af621f2ab">util::Blob_const</a>&amp; blob, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code = 0);</div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span><span class="comment"></span> </div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span><span class="comment">   * Implements Blob_sender API per contract.</span></div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment">   * Reminder: It&#39;s not thread-safe to call this concurrently with other transmission methods or destructor on</span></div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span><span class="comment">   * the same `*this`.</span></div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span><span class="comment">   *</span></div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span><span class="comment">   * #Error_code generated and passed to `on_done_func()`:</span></div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span><span class="comment">   * system codes (but never would-block) (same as for send_blob()),</span></div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span><span class="comment">   * error::Code::S_OBJECT_SHUTDOWN_ABORTED_COMPLETION_HANDLER (destructor called, canceling all pending ops;</span></div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span><span class="comment">   * spiritually identical to `boost::asio::error::operation_aborted`),</span></div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span><span class="comment">   *</span></div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span><span class="comment">   * Reminder: In rare circumstances, an error emitted there may represent something</span></div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span><span class="comment">   * detected during handling of a preceding send_blob() call but after it returned.</span></div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span><span class="comment">   *</span></div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="comment">   * @tparam Task_err</span></div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span><span class="comment">   *         See above.</span></div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span><span class="comment">   * @param on_done_func</span></div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span><span class="comment">   *        See above.  Reminder: any moved/copied version of this callback&#39;s associated captured state will</span></div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span><span class="comment">   *        be freed soon after it returns.</span></div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span><span class="comment">   * @return See above.  Reminder: If and only if it returns `false`, we&#39;re in NULL state, or `*end_sending()` has</span></div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span><span class="comment">   *         already been called; and `on_done_func()` will never be called.</span></div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span><span class="comment">   *</span></div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span><span class="comment">   * @see Blob_sender::async_end_sending(): implemented concept.</span></div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span><span class="comment">   */</span></div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Task_err&gt;</div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af47c711508c0d4fa9766d8d3481ff583">async_end_sending</a>(Task_err&amp;&amp; on_done_func);</div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span><span class="comment"></span> </div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span><span class="comment">   * Implements Blob_sender API per contract.  Reminder: It is equivalent to async_end_sending()</span></div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span><span class="comment">   * but with a no-op `on_done_func`.</span></div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span><span class="comment">   *</span></div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span><span class="comment">   * @return See above.  Reminder: If and only if it returns `false`, we&#39;re in NULL state, or `*end_sending()` has</span></div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span><span class="comment">   *         already been called.</span></div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span><span class="comment">   *</span></div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span><span class="comment">   * @see Blob_sender::end_sending(): implemented concept.</span></div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span><span class="comment">   */</span></div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a2d6eac56c4f66d9a39fb3e4d1b5218d8">end_sending</a>();</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span><span class="comment"></span> </div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span><span class="comment">   * Implements Blob_sender API per contract.</span></div>
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span><span class="comment">   *</span></div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span><span class="comment">   * @param period</span></div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span><span class="comment">   *        See above.</span></div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span><span class="comment">   *</span></div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span><span class="comment">   * @see Blob_sender::auto_ping(): implemented concept.</span></div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span><span class="comment">   */</span></div>
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a5453dccb1253f77975fcc0e2ad4cc0ea">auto_ping</a>(<a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a> period = boost::chrono::seconds(2));</div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="comment"></span> </div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span><span class="comment">   * Returns nickname, a brief string suitable for logging.  This is included in the output by the `ostream&lt;&lt;`</span></div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span><span class="comment">   * operator as well.  This method is thread-safe in that it always returns the same value.</span></div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span><span class="comment">   *</span></div>
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span><span class="comment">   * If this object is default-cted (or moved-from), this will return a value equal to &quot;&quot;.</span></div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span><span class="comment">   *</span></div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span><span class="comment">   * @return See above.</span></div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span><span class="comment">   */</span></div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span>  <span class="keyword">const</span> std::string&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ab4ae64f241761ab94ed005f65a55a318">nickname</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span><span class="comment"></span> </div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span><span class="comment">  /**</span></div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="comment">   * Returns name equal to `mq.absolute_name()`, where `mq` was passed to ctor, at the time it was passed to ctor.</span></div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span><span class="comment">   *</span></div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span><span class="comment">   * If this object is default-cted (or moved-from), this will return Shared_name::S_EMPTY.</span></div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span><span class="comment">   *</span></div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span><span class="comment">   * @return See above.  Always the same value except across move-assignment.</span></div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span><span class="comment">   */</span></div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span>  <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa116304df6214c3ae5d18dbf3305da87">absolute_name</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span> </div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span>  <span class="comment">// Types.</span></div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span><span class="comment"></span> </div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span><span class="comment">  /// Short-hand for `const`-respecting wrapper around Blob_stream_mq_sender_impl for the pImpl idiom.</span></div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ac97c9d7d3dad9e48151f92f884d5f12e">  424</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ac97c9d7d3dad9e48151f92f884d5f12e">Impl_ptr</a> = std::experimental::propagate_const&lt;boost::movelib::unique_ptr&lt;Blob_stream_mq_sender_impl&lt;Mq&gt;&gt;&gt;;</div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span> </div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span>  <span class="comment">// Friends.</span></div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span><span class="comment"></span> </div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span><span class="comment">  /// Friend of Blob_stream_mq_sender.</span></div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span><span class="comment"></span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle2&gt;</div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ac705c3a4a0a532bf9e432aa3ba0db7da">  430</a></span>  <span class="keyword">friend</span> std::ostream&amp; <a class="code hl_friend" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ac705c3a4a0a532bf9e432aa3ba0db7da">operator&lt;&lt;</a>(std::ostream&amp; os, <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender&lt;Persistent_mq_handle2&gt;</a>&amp; val);</div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span> </div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span>  <span class="comment">// Data.</span></div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span><span class="comment"></span> </div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span><span class="comment">  /// The true implementation of this class.  See also our class doc header.</span></div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af81738986da26bdd1bb3eef3ccd29296">  435</a></span><span class="comment"></span>  <a class="code hl_typedef" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ac97c9d7d3dad9e48151f92f884d5f12e">Impl_ptr</a> <a class="code hl_variable" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af81738986da26bdd1bb3eef3ccd29296">m_impl</a>;</div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span>}; <span class="comment">// class Blob_stream_mq_sender</span></div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span> </div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span><span class="comment">// Free functions: in *_fwd.hpp.</span></div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span> </div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span><span class="comment">// Template initializers.</span></div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span> </div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span><span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a> <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::S_RESOURCE_TYPE_ID</a> = Mq::S_RESOURCE_TYPE_ID;</div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span> </div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span><span class="comment">// Template implementations (strict pImpl-idiom style (albeit pImpl-lite due to template-ness)).</span></div>
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span> </div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span><span class="comment">// The performant move semantics we get delightfully free with pImpl; they&#39;ll just move-to/from the unique_ptr m_impl.</span></div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span> </div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span><a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::Blob_stream_mq_sender</a>(<a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a>&amp;&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span><a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;</a>&amp; <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::operator</a>=</div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span>                                               (<a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender</a>&amp;&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span> </div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span><span class="comment">// The NULL state ctor comports with how null m_impl is treated all over below.</span></div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span><a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::Blob_stream_mq_sender</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span> </div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span><span class="comment">// The rest is strict forwarding to m_impl, once PEER state is established (non-null m_impl).</span></div>
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span> </div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ab316cad18622921becc6c1ab54b8ed2a">  462</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::Blob_stream_mq_sender</a></div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span>  (flow::log::Logger* logger_ptr, <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">util::String_view</a> nickname_str, <a class="code hl_typedef" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa2cb5c8fc525ae45edf8ab1b257f328d">Mq</a>&amp;&amp; mq, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code) :</div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span>  m_impl(boost::movelib::make_unique&lt;<a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender__impl.html">Blob_stream_mq_sender_impl</a>&lt;<a class="code hl_typedef" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa2cb5c8fc525ae45edf8ab1b257f328d">Mq</a>&gt;&gt;</div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span>           (logger_ptr, nickname_str, std::move(mq), err_code))</div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span>{</div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span>  <span class="comment">// Yay.</span></div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span>}</div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span> </div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af9c44e5fb0285373202abba8b41d177d">  471</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::Blob_stream_mq_sender</a></div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span>  (<a class="code hl_class" href="classipc_1_1transport_1_1sync__io_1_1Blob__stream__mq__sender.html">Sync_io_obj</a>&amp;&amp; sync_io_core_in_peer_state_moved) :</div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span> </div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span>  m_impl(boost::movelib::make_unique&lt;<a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender__impl.html">Blob_stream_mq_sender_impl</a>&lt;<a class="code hl_typedef" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa2cb5c8fc525ae45edf8ab1b257f328d">Mq</a>&gt;&gt;</div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span>           (std::move(sync_io_core_in_peer_state_moved)))</div>
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span>{</div>
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span>  <span class="comment">// Yay.</span></div>
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span>}</div>
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span> </div>
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span><span class="comment">// It&#39;s only explicitly defined to formally document it.</span></div>
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span><a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a0986c0ee166edfdbb96b4a581678d01e">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::~Blob_stream_mq_sender</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span> </div>
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a4e5d7add242439e01c56cab3697aebb6">  485</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a4e5d7add242439e01c56cab3697aebb6">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::send_blob_max_size</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span>  <span class="keywordflow">return</span> m_impl ? m_impl-&gt;send_blob_max_size() : 0;</div>
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span>}</div>
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span> </div>
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a1d23a47d08ac7c31aa546ea02bb24c55">  491</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a1d23a47d08ac7c31aa546ea02bb24c55">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::send_blob</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae0be7edba7e30ffa3f8b742af621f2ab">util::Blob_const</a>&amp; blob, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span>{</div>
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span>  <span class="keywordflow">return</span> m_impl ? (m_impl-&gt;send_blob(blob, err_code), <span class="keyword">true</span>)</div>
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span>                : <span class="keyword">false</span>;</div>
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span>}</div>
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span> </div>
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Task_err&gt;</div>
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af47c711508c0d4fa9766d8d3481ff583">  499</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af47c711508c0d4fa9766d8d3481ff583">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::async_end_sending</a>(Task_err&amp;&amp; on_done_func)</div>
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span>{</div>
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span>  <span class="keywordflow">return</span> m_impl ? m_impl-&gt;async_end_sending(std::move(on_done_func)) : <span class="keyword">false</span>;</div>
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span>}</div>
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span> </div>
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a2d6eac56c4f66d9a39fb3e4d1b5218d8">  505</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a2d6eac56c4f66d9a39fb3e4d1b5218d8">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::end_sending</a>()</div>
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span>{</div>
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span>  <span class="keywordflow">return</span> m_impl ? m_impl-&gt;end_sending() : <span class="keyword">false</span>;</div>
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span>}</div>
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span> </div>
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a5453dccb1253f77975fcc0e2ad4cc0ea">  511</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a5453dccb1253f77975fcc0e2ad4cc0ea">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::auto_ping</a>(<a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a> period)</div>
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span>{</div>
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span>  <span class="keywordflow">return</span> m_impl ? m_impl-&gt;auto_ping(period) : <span class="keyword">false</span>;</div>
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span>}</div>
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span> </div>
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa116304df6214c3ae5d18dbf3305da87">  517</a></span><span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa116304df6214c3ae5d18dbf3305da87">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::absolute_name</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span>  <span class="keywordflow">return</span> m_impl ? m_impl-&gt;absolute_name() : <a class="code hl_variable" href="classipc_1_1util_1_1Shared__name.html#a5bbfb4d3b378cf7b9a1bcaf5d6c5a067">Shared_name::S_EMPTY</a>;</div>
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span>}</div>
<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span> </div>
<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ab4ae64f241761ab94ed005f65a55a318">  523</a></span><span class="keyword">const</span> std::string&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ab4ae64f241761ab94ed005f65a55a318">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;::nickname</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span>  <span class="keywordflow">return</span> m_impl ? m_impl-&gt;nickname() : <a class="code hl_variable" href="namespaceipc_1_1util.html#aca6ca223759ca3e11d5834a323454afa">util::EMPTY_STRING</a>;</div>
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span>}</div>
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span> </div>
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span><span class="comment">// `friend`ship needed for this &quot;non-method method&quot;:</span></div>
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span> </div>
<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Persistent_mq_handle&gt;</div>
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#acb29aca9de166fd1f24a09d08afe2fcc">  531</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceipc_1_1transport.html#a61c80019823537694f925275dccb4f3f">operator&lt;&lt;</a>(std::ostream&amp; os, <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">Blob_stream_mq_sender&lt;Persistent_mq_handle&gt;</a>&amp; val)</div>
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span>{</div>
<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span>  <span class="keywordflow">if</span> (val.<a class="code hl_variable" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af81738986da26bdd1bb3eef3ccd29296">m_impl</a>)</div>
<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span>  {</div>
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span>    <span class="keywordflow">return</span> os &lt;&lt; *val.<a class="code hl_variable" href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af81738986da26bdd1bb3eef3ccd29296">m_impl</a>;</div>
<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span>  }</div>
<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span>  <span class="keywordflow">return</span> os &lt;&lt; <span class="stringliteral">&quot;null&quot;</span>;</div>
<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span>}</div>
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span> </div>
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span>} <span class="comment">// namespace ipc::transport</span></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__base_html"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__base.html">ipc::transport::Blob_stream_mq_base</a></div><div class="ttdoc">Base of Blob_stream_mq_sender and Blob_stream_mq_receiver containing certain static facilities,...</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq_8hpp_source.html#l00036">blob_stream_mq.hpp:37</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender__impl_html"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender__impl.html">ipc::transport::Blob_stream_mq_sender_impl</a></div><div class="ttdoc">Internal, non-movable pImpl-lite implementation of Blob_stream_mq_sender class template.</div><div class="ttdef"><b>Definition:</b> <a href="detail_2blob__stream__mq__snd__impl_8hpp_source.html#l00059">blob_stream_mq_snd_impl.hpp:63</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender__impl_html_a437460b4d4c98c43ecba190d3859eab4"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender__impl.html#a437460b4d4c98c43ecba190d3859eab4">ipc::transport::Blob_stream_mq_sender_impl::Mq</a></div><div class="ttdeci">typename Base::Mq Mq</div><div class="ttdoc">Short-hand for template arg for underlying MQ handle type.</div><div class="ttdef"><b>Definition:</b> <a href="detail_2blob__stream__mq__snd__impl_8hpp_source.html#l00071">blob_stream_mq_snd_impl.hpp:71</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html">ipc::transport::Blob_stream_mq_sender</a></div><div class="ttdoc">Implements Blob_sender concept by using an adopted Persistent_mq_handle MQ handle to an MQ (message q...</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00164">blob_stream_mq_snd.hpp:165</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_a0986c0ee166edfdbb96b4a581678d01e"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a0986c0ee166edfdbb96b4a581678d01e">ipc::transport::Blob_stream_mq_sender::~Blob_stream_mq_sender</a></div><div class="ttdeci">~Blob_stream_mq_sender()</div><div class="ttdoc">Implements Blob_sender API.</div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_a1d23a47d08ac7c31aa546ea02bb24c55"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a1d23a47d08ac7c31aa546ea02bb24c55">ipc::transport::Blob_stream_mq_sender::send_blob</a></div><div class="ttdeci">bool send_blob(const util::Blob_const &amp;blob, Error_code *err_code=0)</div><div class="ttdoc">Implements Blob_sender API per contract.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00491">blob_stream_mq_snd.hpp:491</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_a2d6eac56c4f66d9a39fb3e4d1b5218d8"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a2d6eac56c4f66d9a39fb3e4d1b5218d8">ipc::transport::Blob_stream_mq_sender::end_sending</a></div><div class="ttdeci">bool end_sending()</div><div class="ttdoc">Implements Blob_sender API per contract.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00505">blob_stream_mq_snd.hpp:505</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_a4e5d7add242439e01c56cab3697aebb6"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a4e5d7add242439e01c56cab3697aebb6">ipc::transport::Blob_stream_mq_sender::send_blob_max_size</a></div><div class="ttdeci">size_t send_blob_max_size() const</div><div class="ttdoc">Implements Blob_sender API per contract.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00485">blob_stream_mq_snd.hpp:485</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_a5453dccb1253f77975fcc0e2ad4cc0ea"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a5453dccb1253f77975fcc0e2ad4cc0ea">ipc::transport::Blob_stream_mq_sender::auto_ping</a></div><div class="ttdeci">bool auto_ping(util::Fine_duration period=boost::chrono::seconds(2))</div><div class="ttdoc">Implements Blob_sender API per contract.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00511">blob_stream_mq_snd.hpp:511</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_a57164996725324b544aedf6707d158d1"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a57164996725324b544aedf6707d158d1">ipc::transport::Blob_stream_mq_sender::S_RESOURCE_TYPE_ID</a></div><div class="ttdeci">static const Shared_name S_RESOURCE_TYPE_ID</div><div class="ttdoc">Implements concept API. Equals Mq::S_RESOURCE_TYPE_ID.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00183">blob_stream_mq_snd.hpp:183</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_a632ad9aa40e557a9d5edef4b122ddaf9"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a632ad9aa40e557a9d5edef4b122ddaf9">ipc::transport::Blob_stream_mq_sender::operator=</a></div><div class="ttdeci">Blob_stream_mq_sender &amp; operator=(Blob_stream_mq_sender &amp;&amp;src)</div><div class="ttdoc">Move-assigns from src; *this acts as if destructed; src becomes as-if default-cted (therefore in NULL...</div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_a76419b55b2411de21b704b4385b1eac7"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#a76419b55b2411de21b704b4385b1eac7">ipc::transport::Blob_stream_mq_sender::operator=</a></div><div class="ttdeci">Blob_stream_mq_sender &amp; operator=(const Blob_stream_mq_sender &amp;)=delete</div><div class="ttdoc">Copy assignment is disallowed.</div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_aa116304df6214c3ae5d18dbf3305da87"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa116304df6214c3ae5d18dbf3305da87">ipc::transport::Blob_stream_mq_sender::absolute_name</a></div><div class="ttdeci">const Shared_name &amp; absolute_name() const</div><div class="ttdoc">Returns name equal to mq.absolute_name(), where mq was passed to ctor, at the time it was passed to c...</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00517">blob_stream_mq_snd.hpp:517</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_aa2cb5c8fc525ae45edf8ab1b257f328d"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa2cb5c8fc525ae45edf8ab1b257f328d">ipc::transport::Blob_stream_mq_sender::Mq</a></div><div class="ttdeci">typename Blob_stream_mq_sender_impl&lt; Persistent_mq_handle &gt;::Mq Mq</div><div class="ttdoc">Short-hand for template arg for underlying MQ handle type.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00173">blob_stream_mq_snd.hpp:173</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_aa4537d9d39f2ba775dc98ef6d3fc6d4e"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#aa4537d9d39f2ba775dc98ef6d3fc6d4e">ipc::transport::Blob_stream_mq_sender::Blob_stream_mq_sender</a></div><div class="ttdeci">Blob_stream_mq_sender()</div><div class="ttdoc">Implements Blob_sender API, per its concept contract.</div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_ab4ae64f241761ab94ed005f65a55a318"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ab4ae64f241761ab94ed005f65a55a318">ipc::transport::Blob_stream_mq_sender::nickname</a></div><div class="ttdeci">const std::string &amp; nickname() const</div><div class="ttdoc">Returns nickname, a brief string suitable for logging.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00523">blob_stream_mq_snd.hpp:523</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_ac705c3a4a0a532bf9e432aa3ba0db7da"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ac705c3a4a0a532bf9e432aa3ba0db7da">ipc::transport::Blob_stream_mq_sender::operator&lt;&lt;</a></div><div class="ttdeci">friend std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Blob_stream_mq_sender&lt; Persistent_mq_handle2 &gt; &amp;val)</div><div class="ttdoc">Friend of Blob_stream_mq_sender.</div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_ac97c9d7d3dad9e48151f92f884d5f12e"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ac97c9d7d3dad9e48151f92f884d5f12e">ipc::transport::Blob_stream_mq_sender::Impl_ptr</a></div><div class="ttdeci">std::experimental::propagate_const&lt; boost::movelib::unique_ptr&lt; Blob_stream_mq_sender_impl&lt; Mq &gt; &gt; &gt; Impl_ptr</div><div class="ttdoc">Short-hand for const-respecting wrapper around Blob_stream_mq_sender_impl for the pImpl idiom.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00424">blob_stream_mq_snd.hpp:424</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_ad3cef9a7f7218295790ad2fcd5520224"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ad3cef9a7f7218295790ad2fcd5520224">ipc::transport::Blob_stream_mq_sender::Blob_stream_mq_sender</a></div><div class="ttdeci">Blob_stream_mq_sender(const Blob_stream_mq_sender &amp;)=delete</div><div class="ttdoc">Copy construction is disallowed.</div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_ae8782f3758e07a82853115c2d7305dc7"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#ae8782f3758e07a82853115c2d7305dc7">ipc::transport::Blob_stream_mq_sender::Blob_stream_mq_sender</a></div><div class="ttdeci">Blob_stream_mq_sender(Blob_stream_mq_sender &amp;&amp;src)</div><div class="ttdoc">Move-constructs from src; src becomes as-if default-cted (therefore in NULL state).</div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_af47c711508c0d4fa9766d8d3481ff583"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af47c711508c0d4fa9766d8d3481ff583">ipc::transport::Blob_stream_mq_sender::async_end_sending</a></div><div class="ttdeci">bool async_end_sending(Task_err &amp;&amp;on_done_func)</div><div class="ttdoc">Implements Blob_sender API per contract.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00499">blob_stream_mq_snd.hpp:499</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Blob__stream__mq__sender_html_af81738986da26bdd1bb3eef3ccd29296"><div class="ttname"><a href="classipc_1_1transport_1_1Blob__stream__mq__sender.html#af81738986da26bdd1bb3eef3ccd29296">ipc::transport::Blob_stream_mq_sender::m_impl</a></div><div class="ttdeci">Impl_ptr m_impl</div><div class="ttdoc">The true implementation of this class. See also our class doc header.</div><div class="ttdef"><b>Definition:</b> <a href="blob__stream__mq__snd_8hpp_source.html#l00435">blob_stream_mq_snd.hpp:435</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Null__peer_html"><div class="ttname"><a href="classipc_1_1transport_1_1Null__peer.html">ipc::transport::Null_peer</a></div><div class="ttdoc">Dummy type for use as a template param to Channel when either the blobs pipe or handles pipe is disab...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2transport_2channel_8hpp_source.html#l00999">channel.hpp:1000</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1sync__io_1_1Blob__stream__mq__sender_html"><div class="ttname"><a href="classipc_1_1transport_1_1sync__io_1_1Blob__stream__mq__sender.html">ipc::transport::sync_io::Blob_stream_mq_sender&lt; Mq &gt;</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html">ipc::util::Shared_name</a></div><div class="ttdoc">String-wrapping abstraction representing a name uniquely distinguishing a kernel-persistent entity fr...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00241">shared_name.hpp:242</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_a5bbfb4d3b378cf7b9a1bcaf5d6c5a067"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#a5bbfb4d3b378cf7b9a1bcaf5d6c5a067">ipc::util::Shared_name::S_EMPTY</a></div><div class="ttdeci">static const Shared_name S_EMPTY</div><div class="ttdoc">A (default-cted) Shared_name. May be useful for functions returning const Shared_name&amp;.</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00247">shared_name.hpp:247</a></div></div>
<div class="ttc" id="adetail_2blob__stream__mq__snd__impl_8hpp_html"><div class="ttname"><a href="detail_2blob__stream__mq__snd__impl_8hpp.html">blob_stream_mq_snd_impl.hpp</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html"><div class="ttname"><a href="namespaceipc_1_1transport.html">ipc::transport</a></div><div class="ttdoc">Flow-IPC module providing transmission of structured messages and/or low-level blobs (and more) betwe...</div><div class="ttdef"><b>Definition:</b> <a href="asio__local__stream__socket_8cpp_source.html#l00031">asio_local_stream_socket.cpp:32</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html_a61c80019823537694f925275dccb4f3f"><div class="ttname"><a href="namespaceipc_1_1transport.html#a61c80019823537694f925275dccb4f3f">ipc::transport::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Bipc_mq_handle &amp;val)</div><div class="ttdoc">Prints string representation of the given Bipc_mq_handle to the given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="bipc__mq__handle_8cpp_source.html#l01029">bipc_mq_handle.cpp:1029</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ac66141280c3b7295a86b65209f31cc58"><div class="ttname"><a href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">ipc::util::Fine_duration</a></div><div class="ttdeci">flow::Fine_duration Fine_duration</div><div class="ttdoc">Short-hand for Flow's Fine_duration.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00117">util_fwd.hpp:117</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_aca6ca223759ca3e11d5834a323454afa"><div class="ttname"><a href="namespaceipc_1_1util.html#aca6ca223759ca3e11d5834a323454afa">ipc::util::EMPTY_STRING</a></div><div class="ttdeci">const std::string EMPTY_STRING</div><div class="ttdoc">A (default-cted) string. May be useful for functions returning const std::string&amp;.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2util_8cpp_source.html#l00033">util.cpp:33</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ae0be7edba7e30ffa3f8b742af621f2ab"><div class="ttname"><a href="namespaceipc_1_1util.html#ae0be7edba7e30ffa3f8b742af621f2ab">ipc::util::Blob_const</a></div><div class="ttdeci">boost::asio::const_buffer Blob_const</div><div class="ttdoc">Short-hand for an immutable blob somewhere in memory, stored as exactly a void const * and a size_t.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00134">util_fwd.hpp:134</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ae6ac47812a90d1287c61e0b7de7bc4f5"><div class="ttname"><a href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">ipc::util::String_view</a></div><div class="ttdeci">flow::util::String_view String_view</div><div class="ttdoc">Short-hand for Flow's String_view.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00115">util_fwd.hpp:115</a></div></div>
<div class="ttc" id="anamespaceipc_html_aa3192e586cc45d3e7c22463bf2760f89"><div class="ttname"><a href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">ipc::Error_code</a></div><div class="ttdeci">flow::Error_code Error_code</div><div class="ttdoc">Short-hand for flow::Error_code which is very common.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00298">common.hpp:298</a></div></div>
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